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Gut Microbiota Composition Is Related to Cardiorespiratory Fitness in Healthy Young Adults

Ryan P. Durk, Esperanza Castillo, Leticia Márquez-Magaña, Gregory J. Grosicki, Nicole D. Bolter, C. Matthew Lee, and James R. Bagley

the best of our knowledge, no study has examined if F/B is associated with cardiorespiratory fitness, as assessed by maximal oxygen consumption (VO 2 max), independent from dietary or anthropometric measures. The purpose of this exploratory study was to identify potential relationships among relative

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Cardiorespiratory Fitness and Bone Turnover Markers in Adults With Metabolic Syndrome: The Mediator Role of Inflammation

José J. Gil-Cosano, Luis Gracia-Marco, Daniel Courteix, Bruno Lesourd, Robert Chapier, Philippe Obert, Guillaume Walther, Agnes Vinet, David Thivel, Manuel Muñoz-Torres, Ukadike C. Ugbolue, Reza Bagheri, Marek Zak, Frédéric Dutheil, and Esther Ubago-Guisado

have been consistently associated with cardiorespiratory fitness (CRF) in middle-aged adults ( Hong et al., 2014 ; Jae et al., 2008 ; McGavock et al., 2004 ). High levels of CRF largely negate the adverse effects of excess adiposity, which is also referred as the “fat and fit” phenomenon ( Oktay et

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Predicting Cardiorespiratory Fitness in Female Soccer Players: The Basque Female Football Cohort Study

Ibai Garcia-Tabar, Aitor Iturricastillo, Julen Castellano, Eduardo L. Cadore, Mikel Izquierdo, and Igor Setuain

Physiol . 2018 ; 9 : 1034 . PubMed ID: 30108519 doi:10.3389/fphys.2018.01034 10.3389/fphys.2018.01034 9. Buchheit M , Simpson BM , Lacome M . Monitoring cardiorespiratory fitness in professional soccer players: is it worth the prick? Int J Sports Physiol Perform . 2020 : 1 – 5 . [Epub ahead

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The Relationship between Cardiorespiratory Fitness, Physical Activity, and Dietary Quality

Diane E. Butterworth, David C. Nieman, Bruce C. Underwood, and Kristian D. Lindsied

This study evaluated the relationship between cardiorespiratory fitness, physical activity, and dietary quality in a group of 20- to 40-year-old women (n = 34) who varied widely in levels of physical activity. Nutrient intakes were determined using 10 repeated 24-hr diet records, randomly assigned, over a 10-week period, Physical activity was determined on the same randomly assigned days using the Caltrac Personal Activity Computer. Cardiorespiratory fitness was assessed by two maximal graded treadmill tests with continuous metabolic monitoring at both the beginning and end of the 10-week period. Neither physical activity nor cardiorespiratory fitness was significantly correlated with nutrient density (nutrient/1,000 kcal). Intake of energy (kcal/kg body weight) was higher for the more physically active and fit women, leading to a significant increase in most nutrients consumed per kilogram of body weight.

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Before School Exercise Effects on Fitness and Academic Performance in Schoolchildren: A Retrospective Case-Controlled Study

Austin J. Kulp and Xihe Zhu

active during the school day ( Stylianou, van der Mars, et al., 2016 ). Getting children moving before school can also be used as a method to improve physical health, including body composition and cardiorespiratory fitness ( García-Hermoso et al., 2019 ; Westcott et al., 2015 ; Whooten et al., 2018

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Promoting Health-Related Cardiorespiratory Fitness in Physical Education: The Role of Lesson Context and Teacher Behavior in an Observational Longitudinal Study

Miguel Peralta, Élvio Rúbio Gouveia, Gerson Ferrari, Ricardo Catunda, Duarte Heriques-Neto, and Adilson Marques

Medicine, 2013 ). Among the physical fitness components, cardiorespiratory fitness (CRF) is the most studied, as it is an important health indicator associated with cardiometabolic health, including blood pressure, cholesterol and triglyceride levels, and glucose tolerance, in children and adolescents

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Impact of Embedding High-Intensity Interval Training in Schools and Sports Training on Children and Adolescent’s Cardiometabolic Health and Health-Related Fitness: Systematic Review and Meta-Analysis

Narelle Eather, Mark Babic, Nicholas Riley, Sarah A. Costigan, and David R. Lubans

a small proportion (∼6%) of older adolescents (15–17 years) considered sufficiently active ( Schranz et al., 2016 ). Furthermore, current levels of physical fitness in young people are concerning. Cardiorespiratory fitness (CRF) levels of children and adolescents have dropped by 7.3% since the 1980

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Influence of Diet and/or Exercise on Body Composition and Cardiorespiratory Fitness in Obese Women

Alan C. Utter, David C. Nieman, Elizabeth M. Shannonhouse, Diane E. Butterworth, and Cathy N. Nieman

The purpose of this study was to measure the influence of diet, exercise, or both on body composition and cardiorespiratory fitness in obese women. Ninety-one obese subjects were randomized into one of four groups: diet (D) (4.19–5.44 MJ or 1,200–1,300 kcal/day), exercise (E) (five 45-min sessions at 78.5 ± 0.5% maximum heart rate), exercise and diet (ED), and controls (C). Maximal aerobic power and body composition were measured in all subjects before and after a 12-week diet intervention period. Subjects in D and ED lost 7.8 ± 0.7 and 8.1 ± 0.6 kg body mass, with no significant change for E relative to C. Losses of percent body fat and fat mass were significantly greater in D and ED but not in E relative to C. The change in VO2max was greater in ED and E but not D when compared to C. Results indicate that moderate aerobic exercise training during a 12-week period has no discernible effects on body composition but does improve cardiorespiratory fitness in dieting obese women.

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The Role of Perceived and Actual Motor Competency on Children’s Physical Activity and Cardiorespiratory Fitness During Middle Childhood

Xiangli Gu, Katherine Thomas Thomas, and Yu-Lin Chen

Purpose:

Guided by Stodden et al.’s (2008) conceptual model, the purpose of this study was to examine the associations among perceived competence, actual motor competence (MC), physical activity (PA), and cardiorespiratory fitness in elementary children. The group differences were also investigated as a function of MC levels.

Methods:

A correlational research design was used in this study. There were 262 children (Mage = 10.87, SD = .77) recruited from three schools in the southern U.S. Students’ MC was objectively measured based on a process-oriented assessment (PE Metrics, NASPE, 2010). Students self-reported perceived competence and leisure-time PA. Then, the Progressive Aerobic Cardiovascular Endurance Run (PACER) and pedometers were used to measure students’ cardiorespiratory fitness and in-class PA, respectively.

Results:

The structural equation modeling analysis supported the significant indirect effect of the MC on cardiorespiratory fitness and PA through perceived competence. The MANCOVA yielded a significant main effect for MC groups after controlling for sex [Wilks’s Lambda = .838, F = 12.15 (4, 251), p < .001, η2 = .16]. Regardless of sex, children with low MC demonstrated lower perceived competence, PA, and cardiorespiratory fitness compared with children with higher MC (p < .001).

Discussion:

Development of students’ competence beliefs in PE and certain movement patterns should be emphasized, especially during middle childhood. High quality PE programs must be aligned with national standards, with particular attention to enhancing skill acquisition (standard 1) and PE-motivation (i.e., perceived competence; standard 5).

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Serum Metabolites Related to Cardiorespiratory Fitness, Physical Activity Energy Expenditure, Sedentary Time and Vigorous Activity

Angelika Wientzek, Anna Floegel, Sven Knüppel, Matthaeus Vigl, Dagmar Drogan, Jerzy Adamski, Tobias Pischon, and Heiner Boeing

The aim of our study was to investigate the relationship between objectively measured physical activity (PA) and cardiorespiratory fitness (CRF) and serum metabolites measured by targeted metabolomics in a population- based study. A total of 100 subjects provided 2 fasting blood samples and engaged in a CRF and PA measurement at 2 visits 4 months apart. CRF was estimated from a step test, whereas physical activity energy expenditure (PAEE), time spent sedentary and time spend in vigorous activity were measured by a combined heart rate and movement sensor for a total of 8 days. Serum metabolite concentrations were determined by flow injection analysis tandem mass spectrometry (FIA-MS/MS). Linear mixed models were applied with multivariable adjustment and p-values were corrected for multiple testing. Furthermore, we explored the associations between CRF, PA and two metabolite factors that have previously been linked to risk of Type 2 diabetes. CRF was associated with two phosphatidylcholine clusters independently of all other exposures. Lysophosphatidylcholine C14:0 and methionine were significantly negatively associated with PAEE and sedentary time. CRF was positively associated with the Type 2 diabetes protective factor. Vigorous activity was positively associated with the Type 2 diabetes risk factor in the mutually adjusted model. Our results suggest that CRF and PA are associated with serum metabolites, especially CRF with phosphatidylcholines and with the Type 2 diabetes protective factor. PAEE and sedentary time were associated with methionine. The identified metabolites could be potential mediators of the protective effects of CRF and PA on chronic disease risk.